A lot of people think that scuttling around stencilling images onto buildings in the middle of the night is the action of a sad, frustrated individual who can't get attention or recognition any other way. They might be right, but I've done gallery shows and, if you've been hitting on people with all sorts of images in all sorts of places, they're a real step backwards, painting the streets means becoming an actual part of the city. It's not a spectator sport.